NHTSA Complaint #11563672 — 2021 FORD MUSTANG MACH E

I drove the car to work with no issues. I left work a little over 9 hours later. I was able to enter car without issues. Turned on car and didn’t notice any issues. My phone connected as usual via CarPlay and I navigated home. Leaving the work area is low speed, so I never exceeded 20 mph and just went by feeling, but once I was on a more open stretch of road, I noticed that the instrument cluster was frozen and the speed it was displaying felt too slow compared to how I felt I was going. In essence, I couldn’t tell how fast I was going. After closer examination (mind you I was driving while figuring this stuff out), I noticed that the instrument cluster would update once in say 10seconds or so (but it was variable). I tried to set cruise control to initiate blue cruise, but I couldn’t tell what speed cruise control was being set to due to this enormous lag. I also wasn’t sure if the system would also exhibit this lag. Finally, I noticed that even the lights indicator for the blinker would refresh very slowly but the audible “click” associated with the blinker was normal. The drive home was very distracted and painful due to this issue. I documented the behavior in a video if needed.